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Characterization of ZnS nanoparticle aggregation using photoluminescence.

Publication ,  Journal Article
Jassby, D; Wiesner, M
Published in: Langmuir : the ACS journal of surfaces and colloids
February 2011

Aggregation of uncoated ZnS nanoparticles was determined to have an unexpected impact on the particle's photoluminescent properties. Aggregation had significant consequences to both band-edge and trap-site photoluminescence, increasing the former and decreasing the latter. The onset of changes to photoluminescence was influenced by aggregation rate. Results suggest that aggregate structure plays an important role in determining the extent to which changes to photoluminescence occur. Strong evidence is presented in support of the hypothesis that aggregation-induced changes to surface tension are responsible for the observed photoluminescence behavior. We show that changes in photoluminescence can be used to predict the attachment coefficient, in lieu of dynamic light scattering. Additionally, our data indicate that the particle size distribution of aggregating ZnS nanoparticles is invariant across electrolyte concentrations, at a given standard deviation away from the maximum rate of photoluminescence change.

Duke Scholars

Published In

Langmuir : the ACS journal of surfaces and colloids

DOI

EISSN

1520-5827

ISSN

0743-7463

Publication Date

February 2011

Volume

27

Issue

3

Start / End Page

902 / 908

Related Subject Headings

  • Chemical Physics
 

Citation

APA
Chicago
ICMJE
MLA
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Jassby, D., & Wiesner, M. (2011). Characterization of ZnS nanoparticle aggregation using photoluminescence. Langmuir : The ACS Journal of Surfaces and Colloids, 27(3), 902–908. https://doi.org/10.1021/la103470r
Jassby, David, and Mark Wiesner. “Characterization of ZnS nanoparticle aggregation using photoluminescence.Langmuir : The ACS Journal of Surfaces and Colloids 27, no. 3 (February 2011): 902–8. https://doi.org/10.1021/la103470r.
Jassby D, Wiesner M. Characterization of ZnS nanoparticle aggregation using photoluminescence. Langmuir : the ACS journal of surfaces and colloids. 2011 Feb;27(3):902–8.
Jassby, David, and Mark Wiesner. “Characterization of ZnS nanoparticle aggregation using photoluminescence.Langmuir : The ACS Journal of Surfaces and Colloids, vol. 27, no. 3, Feb. 2011, pp. 902–08. Epmc, doi:10.1021/la103470r.
Jassby D, Wiesner M. Characterization of ZnS nanoparticle aggregation using photoluminescence. Langmuir : the ACS journal of surfaces and colloids. 2011 Feb;27(3):902–908.
Journal cover image

Published In

Langmuir : the ACS journal of surfaces and colloids

DOI

EISSN

1520-5827

ISSN

0743-7463

Publication Date

February 2011

Volume

27

Issue

3

Start / End Page

902 / 908

Related Subject Headings

  • Chemical Physics